/Engine/Source/Runtime/Engine/Classes/Engine/AssetManager.h
Scans the respective PackagePath for public assets to include in PackagesToCook
virtual void GatherPublicAssetsForPackage ( [FName](API\Runtime\Core\UObject\FName) PackagePath, [TArray](API\Runtime\Core\Containers\TArray)< [FName](API\Runtime\Core\UObject\FName) > & PackagesToCook ) const